Strange things that happen after learning 3D.
Please add your own? During a movie:
1. When things explode, the pattern of bits flying off the thing which is blowing up no longer looks random.
2. When everyone else is enjoying a movie's special effects, you're disappointed they only used stock 3-point lighting.
3. You instantly estimate the movie budget, the moment the movie title rolls onto the screen.
4. The credits are more interesting than the ending that the script writers chose.